Heel-trimming machine



Feb. 4, 1930.' J. AE. MARQUIS 1,745,803

HEEL TRIMMING MACHINE Filed Jan. 7. 1928 2 Sheets-Sheet 1 Fig. 1.

Feb. 4,1930, J.' E. 'MAIHRQUls I' l 1,745,303

HEEL TRIMMING MACHINE Filed Jan. '7. 1928 2 Sheets-Sheet 2 (Figa Figs. l 34 lnU ////A/7; Il" m I3 Joseph E Murqlus by/Wdmkw rammed Feb.r 4,;1930

PATENT OFFICE JOSEPH E. MARQUIS, OF LYNN,- MASSACHUSETTS HEEL-TRIMMING MACHINE Application mea January 7, 192s. rseriai No. 245,101.

i This inventienk relates to heel-trimming i yIrl'acfhines and particularly to machines ,that

' yare designed for trimming the leather lift` which'v usually attached to the bottom of a 5 Wooden heel.v In trimming this leathery lift 'it isr desirable to ynot only trim the edge of the lift sothat it` Will conform to the shape of thefyvoodenheelbut also to ohamferthe coi"- ner, of :the liftsomewhat so that thefbottom 19 of the heel besanded or burnished With- Ieut injuring or disturbing the bead vvhichis rolled en the edgel of theheel. f My present invention `provides anovel `meehanismnffor Y thus. trimming theleather lift of the wooden 1.5, heel aed'ehamfering the edge- In order to give an yunderstanding of the' 'inventionl have illustrated in the drawings a selected embodiment thereof which 'will now f be :described after ywhich the novel features y Will be pointed out in the appendedelaims.

' 11m-chille embodying my invention with a part broken fout s Fig, 2 isatop plan view .of Fig.k 1;

Fig, 3 is an end vievv showing the support ,against which the heel rests `during the trim-v ming operation; A 1

Fig. eis section on the line' 4 4, Fig. ,53

, Figi is a front view. ,of `a heel-trimming Fig.V is a fragmentary section on the vline i v Fig. 6 is a pe-rspeetive view of a heel with [leather lift attached iandbefore it, is

trimmed;

` Fig. f1 'is a 4jssofmevvhat .diagrammatic yievv il- Y ,j -lustifating'the operation of the .trimming cut- 'tersif f Y, ig- 8 is a .fragmentary perspective View 0i a heel after it has been trimmed;

-Figg l9 is aside view'vof the heel after it to has ,beentrmmed and after .the bead has been 45 In 'Fig'. 16, 1 vindicates :2L WOoden heel such as is used on Womens shoes ande isa leather liftivvhfleh is .nailed `te .the bottom ofthe heel. The leather lifitvvhen first attached, t@ the heelfis `some-vvhat larger than the heel so .that

' .150' the 'edge ef the lftprojzts beyond the Pe' riphery of the heel as shown at 3. This projecting edge 3 has to be trimmed oif so as to make the outline of the leather lift 2 correspondto the outline of the heel.

It is also desirablel to chamfer the corner of the liftz-2 as shown at 4; so that vwhen the bottom face 5 of the lift is subsequently polished or sanded the polishingor sanding instrument Will not injure or disturb the bead 6 which is usually formed on the heel before it is finished.

i In the presentembodiment the edge 3 of the leather lift is trimmedto the contour of the heel by means Ofk a rotary trimmer as usual in devices of this type and I also'employ a rotary cutter of special shape for chamfering the corner of the lift as shown at 1. The rotary cutter by which the edge 3 of the heel lift ,is trimmed isy indicated at 7. This cutter is mounted upon a shaft 8 which isfjournalled 70 in bearings 9 carried by the frame 10, said shaft lbeing provided with the driving pulley 11 ,bywhich it may be driven. The Vheel which is being trimmed is supported against a Worksupporting plate 12 which is mounted on a block or rest ,13, the latter being carried by a k.bracket arm' 14,. This bracket arm in turn is adjustably secured toa support 15 which is secured to'. the frame.

The bottom face 5 ofthe leather lift 2 of the heel is held against the Work-supporting plate '1,2 by the operator and in such position that thefrotary ytrimmer 7 will act on the redge of the lift and trim the latterl to a contour corresponding te that of the heel 1 as the heel is turned about its axis bythe operator. 'During this roperation the heel is `held ,horizontal With the face 5 in a vertical plane as clearly seenin Fig. 5,. v

yAssociated with the cutter 7 is a guard 16 kS0 which protects lthe Icutter and prevents the operator'from becoming injured thereby. This guard 16 also acts as a Vguidefor the heel, the leyver end of the lguard resting against the o .utery face of the heel .as shown'in Fig. 5. The guard is of usual construction andit is .adjustably earried by a support 17 which is rigid with .an arm 18 that extends from the supportingmember 15. The guide is fitted in `Ways 19in the support 17`an'd is adjustable vertically in the ways by an adjusting screw 20, and its lateral position is determined'by a stop screw 21, all as usualin` devicesofthis character.

The cutter 7 rotates in the direction of the arrow Figs. 5 and7 and,therefore, the cutting action of the cutter on the lift 2 is-in a direction' from the wooden heel toward the bottom surface 5. This trimming operation leaves a feather edgeas shown at 22 which it is necessary to trim off in order to complete the trimming operation. AccordingV to my invention the trimming of this feather edge 22 is accomplished by means of arrotary cut'- ter which co-operates with the cutter 7 and which trims the feather edge so as to form the chamfer 4 around the corner of the heel. rllhis second rotary cutter is of the cylinder type and it is indicated at 23, it'having the cylindrical cutting edge 24. The cutter 23 is fast on ay shaft25 which is journalled in a bearing 26-adjus'tably carried by the block 13, said cutter being preferably driven from.

the4 shaft 8. For 4this purpose the shaft 8 has a pinion 27 thereon which mesheswith a gear 28 on the shaft 25. j

The chamfe'ring cutter 23 is sovdisposed with relatio'nto'thecutterV 7 that as the vheel is turned about its axis to cause the cutter 7 to operate progressively from one corner 29 of the lift 2 around the back of the heel to the other corner 50, the cutting edge 24 will act on the corner of the heel just inthe rear of the cutter 7 andin so doing will trim the feather edge 22 from the heelk asy shown in Figs. 4 and 7 thus leaving the heel with the chamfered corner 4. The turning movementy of the heel thus feeds the ,leatherlift to both cutters 7 and 23 and as both cutters are rotary cutters the trimming operation is easily andrqui'ckly done.

Ater the heel has been trimmed as shown in Figs. 8 and 9 then the .edge of the'liftV 2 is rolled or burnished thereby to form thereon the bead 6 and subsequentto the forming of the Vbead the bottom of the heel is sanded or polished.y Owing to themanner in which the heel is trimmed the bead will 'be formed at the, corner 30 so thatt-he face 5 will be situated slightly beyond the bead. e Consequentlyk the polishing or sanding of the face 5in the further treatment of theheel'can be accomplished without effecting, injuring or destroying in any way the bead 6.

In the operation of the device it is important that the plane of the face or worksupporting plate 12 should be at the proper angle so that the trimmed face of the leather lift 2 will conform to the curvature and angle of the outside of the heel. ,'Wooden heels are made in different shapes and lthe angle between the face 5 of thelea'ther lift and the side faceof the heel varies somewhat in different styles of heel. This makes it necessary to adjust the face plate 12 so that it may have different angular'relations. s shown in Fig. 5 the face plate stands subi' The block 13 isprovided with'a screw-V l threaded stem 31 which extends through an openingin the ,bracket arm 14said block being clampedto the arm by means of 'a -thumbfnut 32 which is screw threaded to the stem. Byloosening the nut 32 the block 13 Y may beturnedvabout its stem 31 to vary the" angle of the face against which the bottom of the heel rests. j

Y Since the stem 31, which the axis about which the yblock 13 is adjusted, is located above .described will tend to shift the position of the gear 28-relative tothe gear 27. I have, therefore, provided means for'compensating for this shift of positionso as to` maintainfthe' gears in proper mesh for any position in which the block 13 ymay be adjusted.Y This is provided for byV adjustably connecting the supporting. arm 14 tothe main support 15."V As shown inFig. 3'the1arm 14 extends through'a'n extension 33 on the member l15 and is adjustable horizontally, it beingv retained'i'n any adjusted position by a clamping` screw 34. j t

The adjustment of the block 13l can be below' vthe shaft 25,"the tilting ofthe block effected by an adjusting screw 35 which screw f Lthreads through ra boss'36 formed.. on the extension'33`and has a swivel connection with the blocl`13 as shown at 37. If'in adjustj king the block 13 into anew angular position the gear 28 is separated from the gear 27 then the block maybe bodily adjusted laterally yto the'left in Fig. 3 orrtowar'd the-observer in Fig. 1 thereby bringing the gearsY properly in mesh again. On the other hand, if the adjustment is such asto cause the gears to bind then the block 13 may be adjusted bodily to the right Fig. 301' away .from theobserver v in Fig. 1 so as to prevent any binding action.

1n effecting such adjustment the set screw 134 will/beloosenedv` and the position of the blockv 13 may thenlbeshifted by operating the screw 35, the set screw 34 being tightened again when the proper adjustment has been made. Y f

The bearing26 for supporting the shaft 25 is shown asl adjustablysecured to the lblock 13. This bearing is provided with a depending stem 38 which is` providedwith a hole 39 to receive a clamping' screw 40 which screws into the block 13. 'The-hole 39 is larger than the screw 40 so as to provide forvertical and lateral adjustment and the stem 38 is retained in adjusted position partly by the clamping action of the clamping screw 40and partly by the positioning set screw 41, 42`which engage the bott-om andside of to be limited to the stem 38. The set screw 41 is screw threaded through anear43 on the block 13 and the set screw 42 is screw threaded through a second ear 44 which isr secured to and extends from the block 13. Y V f y While IV have illustrated herein a selecte" embodimentof my invention I do not wish the constructional features shown. Y l' Iclaim: s Y l.' In a heel-trimming machine, the cornbination with aheel rest to receive 'the bottom of the heel to be trimmed, of a rotary cutter A for trimming the peripheral edge of the heel progressively, anda second rotary cutter sit-uated non-axially ofV the irst-named rotary cutter for simultaneously chamfering the corner of the heel.

2. In a heel-trimming machine, the com'- bination with a heel rest having a vertical face fto receive the bottom of the heel to be rotatable about an axis separate from but j parallel to that of the first cutter and adapted tosimultaneously'chamfer the corner of the kheel atthe sides and back.

3. Ina heel-trimming machine, the combination with a heelrest, of a rotary cutter adapted to act on the periphery of theheel chamfering the edge of the heel, said cutters rotating about different aXes and driving connections between the two cutters, said rest being tiltable to permit the first-named cutter to conform to different shapes of heel.

7. In a heel-trimming machine for trimming the periphery of a leather lift attached to the bottom of a wooden heel, the combination with a heel rest by which the heel is positioned, of a rotary cutter for trimming the periphery of said lift progressively as the heel is turned, ya second rotary cutter for chamfering the corner of the heel as it is trimmed, gearing connecting said cutters, said heel rest being tiltable to permit the cutter to conform to different shapes of heel, and

also being bodily adjustable to enable the gearing to maintain operative engagement in different angular positions of the heel rest. In testimony whereof, I have signed my name to this specification.

JOSEPH E. MARQUIS.

as the latter is turned thereby to progres.

sively trim the heel around its periphery, and a second rotary cutter operatively connected to the first cutter but rotatingy about a different axis from that of the first-named cutn -ter and adapted to chamfer the corner of the heel.

4. In a machine for trimming av leather lift attached to the bottom of a wooden heel, the combination with ay heel support against' Which'the bottom of the heel is placed, of a rotary cutter for trimming the leatherlift progressively around the periphery of the heel as the latter is turned, and a cylindrical citter for chamfering the edge of the leather li t.

5. In a machine for trimming a leather lift attached to the bottom of a wooden heel, the combination withl a heel support against which the bottom of the heel is placed, of a rotary cutter for trimming the leather lift heel as the latter is turned, a cylindrical rotary cutter for chamfering the edge of the heel, and means to operate the cylindrical cutter from the first-named cutter.

1 the leather lift vas the heel is turned on the rest thereby yto trimsaid lift to conform to the kcontour of the heel, a rotary cutter for rprogressively around the periphery of the 

